Commercial customers: Sound and vision for your property
A lobby where the music sounds equally good everywhere. A bar where you can still converse in the evening. A conference room where the technology simply works. These are very different tasks – but none of them can be solved with an off-the-shelf product. You need a design that fits the space, the use, and the operation.
That's exactly what we do. Since 1992, at Fidelity in Rellingen near Hamburg, we have been dedicated to excellent sound and vision – and today, we also serve commercial clients.
We help with everything that should sound good and look good
We've provided sound systems and equipped hotels with televisions. Multi-zone bars and restaurants. Conference and office rooms. Medical practices with TV equipment. A sports hall with PA equipment. Outdoor areas with weatherproof technology.
What connects these projects is not the industry, but the question behind them: Something in a specific room should sound reliably good or look good. If you have such a project, just ask us. Even if it's not listed below — every commercial project is unique anyway and is individually planned by our project managers.
Hospitality
Lobby, bar, and restaurant need sound reinforcement that is evenly distributed rather than becoming loud in individual spots — usually a matter of distribution, not loudspeaker size. For conference rooms, we always plan picture and sound together with the operating concept. And for in-room TVs, we advise you on devices and mounts for each room category and review the signal distribution in the building.
Gastronomy & Event Venues
We often see two mistakes: too few loudspeakers, turned up too loud — it blares at one table and is missing in the corner. And a background music system that then has to handle a live evening. Both can be avoided by discussing the actual use beforehand. We set up multiple areas with different music so your staff can control them without training.
Architects & Planners
"Good sound, but nothing should be seen" must eventually translate into cable routes, cutouts, and positions — before a device is even selected. We provide you with these specifications and coordinate directly with the executing trades. For you, this means one point of contact for the entire media technology topic.
What we take on
- Needs analysis: which zones, which use, who will operate the technology later
- Planning of loudspeaker positions, power, signal paths and operating concept
- Specifications for electrical planning — which cables where, which outlets and recesses
- Equipment selection from over 80 brands, delivery and installation
- Setup, calibration to the finished room and instruction of your team
- Coordination with the trades involved
- Control and integration via Control4 and RTI
One point that makes the biggest difference in practice: The earlier we are involved, the better and more cost-effective the result will be. Once the walls are closed, elegant solutions are usually off the table.
From plan to finished space


Here's how it works
Request
Briefly tell us what it's about: what kind of property, which rooms, timeline, and what has already been decided. Even if many things are still open.
Initial Consultation
By phone, video call or at our office in Rellingen. Here we clarify what you need, what is feasible in your property, and what the scope of the project will be.
Concept and Offer
Following an on-site visit or based on your planning documents, we will develop a proposed solution: device selection, scope, specifications for electrical planning, and associated costs.
Implementation
We coordinate with the involved trades, deliver, and install. Finally, we calibrate the system to the finished room and instruct your team on its operation.
Come by with your builder or customer
Some things are difficult to convey with plans – but can be shown in ten minutes in a room. In our ten listening studios spanning over 800 m², you can experience solutions directly, including a room where all the technology is invisibly integrated: from a TV hidden behind a picture to a complete surround system with no visible speakers.
Sprich mit uns über dein Projekt
Erzähl uns kurz, worum es geht: Objektart, Räume, Zeitschiene und was schon feststeht. Je mehr wir vorab wissen, desto konkreter wird das erste Gespräch.
Ansprechpartner für Gewerbeprojekte
Tobias Strohof
Technik & Projektmanagement
ts@fidelity-hh.de
+49 40 2577 66 90
Fidelity Acker & Buck oHG
Adlerstraße 79 · 25462 Rellingen
Frequently Asked Questions
At what project size is it worth making an inquiry?
There is no lower limit. We have furnished individual rooms and designed complete houses. If you are unsure: An assessment only costs you a brief conversation.
When should we involve you?
As early as possible. For new builds and renovations, ideally while cable routes can still be changed. It is also possible later—the options only become fewer and the effort greater.
Are you working with our architect or electrician?
Yes, this is normal for larger projects. We provide the specifications for the media technology and coordinate directly with the trades involved.
Can we come to you with our building contractor?
Gladly. Please let us know in advance, and we will prepare the appropriate room and relevant solutions for your visit.
Do you also work outside of Hamburg?
We handle installations in the greater Hamburg area. For more extensive projects, we operate throughout Germany and, if desired, abroad. If no installation is required, we can also advise you by phone or video call and deliver directly to your premises.
How much does it cost?
It's impossible to give a general answer, as objects differ too much. We calculate devices and installations based on their actual scope, and installation services are billed based on time and materials. We always discuss the scope with you beforehand.

